CN113499116B - Blood sampling auxiliary device - Google Patents
Blood sampling auxiliary device Download PDFInfo
- Publication number
- CN113499116B CN113499116B CN202110924447.8A CN202110924447A CN113499116B CN 113499116 B CN113499116 B CN 113499116B CN 202110924447 A CN202110924447 A CN 202110924447A CN 113499116 B CN113499116 B CN 113499116B
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- seat
- wheel
- tightening
- arm
- tensioning
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/132—Tourniquets
- A61B17/1322—Tourniquets comprising a flexible encircling member
- A61B17/1325—Tourniquets comprising a flexible encircling member with means for applying local pressure
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150206—Construction or design features not otherwise provided for; manufacturing or production; packages; sterilisation of piercing element, piercing device or sampling device
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/70—Means for positioning the patient in relation to the detecting, measuring or recording means
- A61B5/702—Posture restraints
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
Abstract
The invention relates to the technical field of medical equipment, in particular to a blood sampling auxiliary device which comprises a base, a tightening seat and a hemostatic assembly. The tightening seat is arranged at one end of the base. The tightening seat is provided with a through hole for the arm to pass through. The tightening seat is matched with the tightening assembly provided with a tightening arm through the hole. The base is used for placing the elbow. The hemostatic assembly comprises a winding wheel, an unwinding wheel and a pressing piece. The unreeling wheel is matched with the tourniquet roll. The winding wheel is used for winding the tourniquet of the tourniquet roll. The pressing piece is used for pressing the tourniquet to the arm. The patient's hand is passed through the pass-through aperture such that the elbow lies flat above the base. The tightening assembly acts and tightens the arm. The arm of the patient is fixed, and arm movement in the blood sampling process is avoided. When blood collection is completed, the winding wheel and the unwinding wheel act cooperatively, so that the tourniquet moves to the front end of the pressing piece. The tourniquet can be stuck to the puncture part of the arm by the action of the pressing part, so that the hemostatic action is completed.
Description
Technical Field
The invention relates to the technical field of medical equipment, in particular to a blood sampling auxiliary device.
Background
In the course of disease treatment, it is often necessary to collect blood from a patient. The existing blood collection mode is usually to use a cushion and a tightening belt to assist the blood collection work. In the blood sampling process, a doctor binds a binding belt on an arm and then punctures and draws blood. After the completion, the cotton swab is pressed for hemostasis. Finally, the patient needs to press the cotton swab for a few minutes to stop bleeding. Therefore, various props are required to be prepared each time when blood is collected, and the operation steps of a doctor in the blood collection process are more, so that the blood collection efficiency is low.
Disclosure of Invention
The invention aims to provide a blood sampling auxiliary device which can assist blood sampling and further improve blood sampling efficiency.
The embodiment of the invention is realized by the following technical scheme:
a blood sampling auxiliary device comprises a base, a tightening seat and a hemostatic assembly; the tightening seat is arranged at one end of the base; the tightening seat is provided with a through hole for an arm to pass through; the tightening seat is matched with the tightening assembly provided with a tightening arm through the hole; the base is used for placing an elbow; the hemostatic assembly comprises a winding wheel, an unwinding wheel and a pressing piece; the unreeling wheel is matched with the hemostatic belt roll; the winding wheel is used for winding the tourniquet of the tourniquet roll; the pressing piece is used for pressing the tourniquet to an arm.
Further, the tightening seat comprises a shell, a rotating ring, a driving motor and a reel, wherein the rotating ring, the driving motor and the reel are arranged in the shell; the rotating ring is concentric with the through hole; the driving motor is connected with the rotating ring in a transmission way; the reel is connected to the rotating ring; the reel is wound with an elastic rope; the other end of the elastic rope is connected to the bottom of the tightening seat; and the wall of the through hole is provided with a wire passing groove along the circumferential direction of the through hole, and the wire passing groove is used for the elastic rope to pass through.
Further, a coil spring for winding the elastic rope is arranged inside the reel; the wire outlet of the reel is provided with a wire guide wheel and a tensioning assembly; the tensioning assembly comprises a tensioning wheel, a tensioning rod and a tensioning spring; the tensioning rod is hinged to an outlet of the reel; the tensioning wheel is arranged at the other end of the tensioning rod; the tensioning spring is connected with the tensioning rod and the reel; the tensioning spring enables the tensioning wheel to approach the wire guide wheel; when the elastic rope moves to the outside of the reel, friction force of the elastic rope to the tensioning wheel enables the tensioning wheel to swing towards the wire guide wheel.
Further, guide convex rings are arranged on two sides of the rotating ring; the guide convex ring is concentric with the rotating ring; the shell is provided with a guide groove for accommodating the guide convex ring.
Further, the tourniquet comprises a tourniquet portion and a ribbon portion; the strip-shaped part is provided with an easy-to-tear line; the hemostatic part is arranged inside the easy-tearing line.
Further, the hemostatic assembly further comprises a swinging seat and a lifting seat; the swinging seat is connected with one side of the tightening seat, which is close to the base, in a swinging way; the pressing piece comprises a telescopic rod and a lifting motor; the upper end of the telescopic rod is telescopically arranged on the swinging seat, and the lower end of the telescopic rod is telescopically connected with the lifting seat; the lifting motor is arranged on the swing seat and drives the telescopic rod to lift relative to the swing seat; the winding wheel and the unwinding wheel are arranged in the lifting seat and are positioned on two sides of the telescopic rod; the lower part of the lifting seat is provided with a through hole for the telescopic rod to extend out.
Further, two extrusion wheels are arranged at one end of the telescopic rod, which is close to the lifting seat; the two extrusion wheels are respectively connected with the telescopic rod through a swinging rod hinged with the telescopic rod; the two swinging rods are connected through an extension spring.
Further, the lifting seat is also provided with a positioning lamp; the positioning lamp is matched with the extrusion wheel to be arranged, so that the extrusion position of the extrusion wheel is the same as the irradiation position of the positioning lamp.
Further, the swing seat is connected to the tightening seat through a connecting rod; the connecting rods are provided with a plurality of connecting rods; two adjacent connecting rods are hinged; the two connecting rods at the two ends are respectively hinged to the tightening seat and the swinging seat.
Further, the swinging seat is in spherical hinge connection with the connecting rod.
The technical scheme of the embodiment of the invention has at least the following advantages and beneficial effects:
when the auxiliary blood sampling device is used, the hand of a patient passes through the through hole and the elbow is horizontally arranged above the base. At this time, the arm is accommodated in the through hole. The tightening assembly acts and tightens the arm. The arm of the patient is fixed, and arm movement in the blood sampling process is avoided.
When blood collection is completed, the winding wheel and the unwinding wheel act cooperatively, so that the tourniquet moves to the front end of the pressing piece. The tourniquet can be stuck to the puncture part of the arm by the action of the pressing part, so that the hemostatic action is completed.
The blood collection auxiliary device can tighten the arm of a patient and simultaneously can automatically stop bleeding. Reduces the actions of tightening and stopping bleeding of doctors, and further improves the blood sampling efficiency.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a blood collection assisting device according to the present invention;
FIG. 2 is an internal structural view of the lacing socket;
FIG. 3 is an enlarged view of FIG. 2 at a;
FIG. 4 is an internal block diagram of the blood flow control assembly;
FIG. 5 is a schematic view of the squeeze wheel extending out of the lift base;
FIG. 6 is a schematic structural view of a tourniquet;
fig. 7 is a cross-sectional view of the cinching socket.
Icon: 1-tightening seat, 10-wire passing groove, 11-through hole, 12-shell, 121-guiding groove, 13-rotating ring, 131-guiding convex ring, 14-driving motor, 15-reel, 151-wire guiding wheel, 16-elastic rope, 17-tensioning wheel, 18-tensioning rod, 19-tensioning spring, 2-base, 3-hemostasis component, 31-winding wheel, 32-unreeling wheel, 33-pressing piece, 331-telescopic rod, 332-lifting motor, 333-extrusion wheel, 334-swinging rod, 335-stretching spring, 4-tourniquet roll, 41-tourniquet, 411-tourniquet, 412-ribbon, 413-easy tearing wire, 5-swinging seat, 6-lifting seat, 61-through hole, 7-connecting rod, 8-arm.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate an azimuth or a positional relationship based on that shown in the drawings, or an azimuth or a positional relationship in which a product of the application is conventionally put in use, it is merely for convenience of describing the present invention and simplifying the description, and it is not indicated or implied that the referred device or element must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless explicitly stated and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Examples:
as shown in fig. 1 to 7, the present invention provides a blood collection auxiliary device comprising a base 2, a tightening seat 1 and a hemostatic assembly 3. The tightening seat 1 is arranged at one end of the base 2. The tightening seat 1 is provided with a through hole 11 through which the arm 8 passes. The base 2 is used for placing the elbow. When the arm 8 passes through the through hole 11 and is fixed on the blood collection auxiliary device, the elbow is placed above the base 2 and the arm 8 is accommodated in the through hole 11. The tightening seat 1 is provided with a tightening component for tightening the arm 8 in cooperation with the through hole 11. The hemostatic assembly 3 includes a winding wheel 31, an unwinding wheel 32, and a pressing member 33. The unreeling wheel 32 is matched with the tourniquet roll 4. The winding wheel 31 is used to wind the tourniquet 41 of the tourniquet roll 4. The pressing member 33 is used to press the tourniquet 41 to the arm 8.
In use of the blood collection assistance device of the present invention, the patient's hand is passed through the pass-through hole 11 and the elbow is laid flat over the base 2. At this time, the arm 8 is accommodated in the passage hole 11. The tightening assembly acts and tightens the arm 8. This also secures the patient's arm 8 against movement during blood collection.
When the blood collection is completed, the winding wheel 31 and the unwinding wheel 32 cooperate such that the tourniquet 41 moves to the front end of the pressing piece 33. The pressing member 33 is operated to adhere the tourniquet 41 to the puncture site of the arm 8, thereby completing the hemostatic operation.
The blood collection assisting device can tighten the arm 8 of a patient and simultaneously can automatically stop bleeding. Reduces the actions of tightening and stopping bleeding of doctors, and further improves the blood sampling efficiency.
In this embodiment, the tightening seat 1 includes a housing 12, and a rotating ring 13, a driving motor 14, and a reel 15 provided inside the housing 12. The rotary ring 13 is concentric with the through hole 11. The driving motor 14 is connected with the rotating ring 13 in a transmission way. Specifically, the drive motor 14 may be drivingly connected to the rotary ring 13 via a gear set. The reel 15 is connected to the rotating ring 13. The reel 15 is wound with an elastic cord 16. The other end of the elastic cord 16 is connected to the bottom of the through hole 11. The wall of the through hole 11 is provided with a wire passing groove 10 along the circumference of the through hole for the elastic rope 16 to pass through. The wire passing groove communicates the inside of the housing 12 and the inside of the passing hole 11 so that the elastic cord 16 can pass through the wire passing groove 10 from the inside of the housing 12 into the passing hole 11.
When the arm 8 is accommodated in the through hole 11, the driving motor 14 drives the rotating ring 13 to rotate, so that the rotating ring 13 drives the reel 15 to rotate. This causes the elastic cord 16 to gradually be pulled out from the reel 15. The elastic cord 16 extends into the through hole 11 through the wire passing groove and contacts the arm 8. The reel 15 rotates around the arm 8 once to enable the elastic rope 16 to be bound around the arm 8, so that the arm 8 is bound.
In the present embodiment, a coil spring around which an elastic cord 16 is wound is provided inside the reel 15. When the blood collection is completed, the driving motor 14 drives the rotating ring 13 to turn over, so that the reel 15 rotates back to the original position. In this process, the coil spring is reset and gradually houses the elastic cord 16 inside the reel 15.
The outlet of the reel 15 is provided with a wire guide wheel 151 and a tensioning assembly. The tensioning assembly comprises a tensioning wheel 17, a tensioning lever 18 and a tensioning spring 19. The tension rod 18 is hinged to the outlet of the reel 15. The tension pulley 17 is provided at the other end of the tension lever 18. A tension spring 19 is connected to the tension rod 18 and the reel 15. The tension spring 19 brings the tension pulley 17 closer to the wire guide pulley 151. When the elastic cord 16 moves to the outside of the reel 15, the friction force of the elastic cord 16 against the tension pulley 17 causes the tension pulley 17 to swing toward the wire guide pulley 151. That is, during the process of pulling the elastic cord 16 out of the reel 15, the friction force makes the tension pulley 17 abut against the side of the wire pulley 151, so that the wire pulley 151 and the tension pulley 17 clamp the elastic cord 16, so that the force required by pulling the elastic cord 16 out is larger, and the elastic cord 16 is in a tensioned state during the process of pulling the elastic cord 16 out of the reel 15. This allows the elastic cord 16 to be re-attached to the arm 8 under tension. The elastic cord 16 can tighten the arm 8 when the arm 8 is wound around one turn. The elastic rope 16 is attached to the arm 8 again under the tensioning state, so that the tightening force applied by the elastic rope 16 to the arm 8 is the same, and the arm 8 is uniformly stressed and has higher comfort. Meanwhile, the tension pulley 17 is far away from the wire guiding pulley 151 under the action of friction force in the process that the elastic rope 16 enters the winding pulley 15, so that the elastic rope 16 can be tightened and wound inside the winding pulley 15.
Meanwhile, the tensioning spring 19 can be provided with a spring with adjustable elasticity, so that the tensioning degree of the elastic rope 16 can be adjusted, and finally the tightening degree of the arm 8 can be adjusted.
In this embodiment, guide convex rings 131 are provided on both sides of the rotary ring 13. The guide projection 131 is concentric with the rotary ring 13. The housing 12 is provided with a guide groove 121 accommodating the guide collar 131. The guide projection 131 is restricted to the guide groove 121, so that the rotary ring 13 can rotate only along the guide groove 121. Thereby securing the stability of the rotating ring 13.
In the present embodiment, the tourniquet 41 includes a tourniquet 411 and a band 412. The band portion 412 is provided with a tear line 413. The blood-stopping portion 411 is located within the frangible line 413. In use, the pressing member 33 pushes the hemostatic portion 411, so that the hemostatic portion 411 is separated from the band portion 412 along the easy-tearing line 413. The hemostatic portion 411 is attached to the puncture site by pressing the pressing member 33, and hemostasis is performed. At the same time, the belt 412 is gradually wound up by the winding wheel 31. The winding wheel 31 winds the belt portion 412 to gradually pull the next hemostatic portion 411 to the pressing portion, thereby preparing for the next hemostatic action.
In this embodiment, the hemostatic assembly 3 further includes a swing seat 5 and a lift seat 6. The swinging seat 5 is connected with one side of the tightening seat 1 close to the base 2 in a swinging way. The pressing piece 33 includes a telescopic rod 331 and a lifting motor 332. The telescopic rod 331 is telescopically arranged on the swinging seat 5, and the lower end is telescopically connected with the lifting seat 6. The lifting motor 332 is disposed on the swing seat 5 and drives the telescopic rod 331 to lift and lower relative to the swing seat 5. Specifically, the telescopic rod 331 is provided with a transmission gear, and the lifting motor 332 is connected to the telescopic rod 331 through a gear engaged with the transmission gear. The winding wheel 31 and the unwinding wheel 32 are both arranged inside the lifting seat 6 and are positioned on two sides of the telescopic rod 331. The lower part of the lifting seat 6 is provided with a through hole 61 for the extension of the telescopic rod 331.
When in use, the lifting motor 332 rotates to drive the telescopic rod 331 to lift, so that the telescopic rod 331 drives the lifting seat 6 to lift. When the lifting base 6 descends to the arm 8, the lifting base 6 is blocked from further descending. At this time, the telescopic rod 331 continues to descend, so that the hemostatic portion 411 is pushed to the arm 8 through the through hole 61, and the hemostatic portion 411 is adhered to the arm 8.
In this embodiment, two squeezing rollers 333 are disposed at one end of the telescopic rod 331 near the lifting seat 6. The two squeeze wheels 333 are each connected to the telescopic rod 331 by a swinging rod 334 hinged to the telescopic rod 331. The two swing levers 334 are connected by an extension spring 335.
In use, the telescopic rod 331 pushes the pressing wheel 333 to extend out of the lifting seat 6. The telescopic rod 331 continues to push, and the two swinging rods 334 are opened to two sides under the pushing force, so that the two squeezing wheels 333 roll to two sides gradually. This also causes the pressing wheel 333 to gradually press the hemostatic section 411 to both sides, so that the hemostatic section 411 is better attached to the arm 8. During this process, the tension spring 335 is gradually stretched. The elastic force of the pressing wheel 333 can keep the state of pressing the arm 8, thereby ensuring the pasting effect.
In this embodiment, the lifting seat 6 is further provided with a positioning lamp. The positioning lamp is matched with the extrusion wheel 333 to make the extrusion position of the extrusion wheel 333 identical to the irradiation position of the positioning lamp. In use, the doctor adjusts the angle of the hemostatic assembly 3, thereby causing the positioning light to illuminate the punctured site. Then, the hemostatic section 411 can be attached to the puncture site by actuating the telescopic rod 331. The positioning lamp can conveniently adjust the pasting position and is convenient to use.
In this embodiment, the swing seat 5 is connected to the tightening seat 1 through a connecting rod 7. The connecting rod 7 is provided with several. Two adjacent connecting rods 7 are hinged. Two connecting rods 7 at two ends are respectively hinged with the tightening seat 1 and the swinging seat 5. Each hinge part of the connecting rods 7 is provided with a damping part, so that the current state can be maintained after the angle between the connecting rods 7 is adjusted. The swinging seat 5 is in spherical hinge connection with the connecting rod 7.
This arrangement allows the hemostatic assembly 3 to be adjusted not only in direction, but also in distance that the hemostatic assembly 3 extends, so that the hemostatic assembly 3 can cover more positions.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A blood collection assisting device, characterized in that: comprises a base (2), a tightening seat (1) and a hemostatic assembly (3); the tightening seat (1) is arranged at one end of the base (2); the tightening seat (1) is provided with a through hole (11) for the arm (8) to pass through; the tightening seat (1) is matched with the tightening assembly of the tightening arm (8) arranged in the through hole (11); the base (2) is used for placing an elbow; the hemostatic assembly (3) comprises a winding wheel (31), an unreeling wheel (32) and a pressing piece (33); the unreeling wheel (32) is matched with the tourniquet roll (4); the winding wheel (31) is used for winding a tourniquet (41) of the tourniquet roll (4); the pressing piece (33) is used for pressing the tourniquet (41) to the arm (8);
the tourniquet (41) comprises a tourniquet part (411) and a belt part (412); the strip-shaped part (412) is provided with an easy-tearing line (413); the inside of the easy-tearing line (413) is the hemostatic part (411);
the hemostatic assembly (3) further comprises a swinging seat (5) and a lifting seat (6); the swinging seat (5) is connected to one side of the tightening seat (1) close to the base (2) in a swinging way; the pressing piece (33) comprises a telescopic rod (331) and a lifting motor (332); the upper end of the telescopic rod (331) is telescopically arranged on the swinging seat (5), and the lower end of the telescopic rod is telescopically connected with the lifting seat (6); the lifting motor (332) is arranged on the swing seat (5) and drives the telescopic rod (331) to lift relative to the swing seat (5); the winding wheel (31) and the unwinding wheel (32) are arranged in the lifting seat (6) and are positioned at two sides of the telescopic rod (331); the lower part of the lifting seat (6) is provided with a through hole (61) for the extension rod (331) to extend.
2. The blood collection assistance device according to claim 1, wherein: the tightening seat (1) comprises a shell (12), and a rotating ring (13), a driving motor (14) and a winding wheel (15) which are arranged in the shell (12); the rotary ring (13) is concentric with the through hole (11); the driving motor (14) is connected with the rotating ring (13) in a transmission way; the reel (15) is arranged on the rotating ring (13); the reel (15) is wound with an elastic rope (16); the other end of the elastic rope (16) is connected to the bottom of the tightening seat (1); the wall of the through hole (11) is provided with a wire passing groove (10) along the circumferential direction of the through hole for the elastic rope (16) to pass through, so that the elastic rope (16) can be bound on the arm (8) by rotating the reel (15) around the arm (8) for one turn.
3. The blood collection assistance device according to claim 2, wherein: a coil spring for winding the elastic rope (16) is arranged inside the reel (15); the wire outlet of the reel (15) is provided with a wire guide wheel (151) and a tensioning assembly; the tensioning assembly comprises a tensioning wheel (17), a tensioning rod (18) and a tensioning spring (19); the tensioning rod (18) is hinged to an outlet of the reel (15); the tensioning wheel (17) is arranged at the other end of the tensioning rod (18); the tensioning spring (19) is connected to the tensioning rod (18) and the reel (15); the tensioning spring (19) enables the tensioning wheel (17) to approach the wire guide wheel (151); when the elastic rope (16) moves to the outside of the reel (15), the friction force of the elastic rope (16) to the tensioning wheel (17) enables the tensioning wheel (17) to swing towards the wire guiding wheel (151).
4. The blood collection assistance device according to claim 2, wherein: guide convex rings (131) are arranged on two sides of the rotating ring (13); the guide convex ring (131) is concentric with the rotating ring (13); the shell (12) is provided with a guide groove (121) for accommodating the guide convex ring (131).
5. The blood collection assistance device according to claim 1, wherein: two extrusion wheels (333) are arranged at one end of the telescopic rod (331) close to the lifting seat (6); the two extrusion wheels (333) are connected with the telescopic rod (331) through a swinging rod (334) hinged with the telescopic rod (331); the two swinging rods (334) are connected through an extension spring (335).
6. The blood collection assistance device according to claim 5, wherein: the lifting seat (6) is also provided with a positioning lamp; the positioning lamp is matched with the extrusion wheel (333) so that the extrusion position of the extrusion wheel (333) is the same as the irradiation position of the positioning lamp.
7. The blood collection assistance device according to claim 6, wherein: the swinging seat (5) is connected with the tightening seat (1) through a connecting rod (7); the connecting rods (7) are provided with a plurality of connecting rods; two adjacent connecting rods (7) are hinged; the two connecting rods (7) at the two ends are respectively hinged to the tightening seat (1) and the swinging seat (5).
8. The blood collection assistance device according to claim 7, wherein: the swinging seat (5) is in spherical hinge connection with the connecting rod (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110924447.8A CN113499116B (en) | 2021-08-12 | 2021-08-12 | Blood sampling auxiliary device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110924447.8A CN113499116B (en) | 2021-08-12 | 2021-08-12 | Blood sampling auxiliary device |
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| CN113499116A CN113499116A (en) | 2021-10-15 |
| CN113499116B true CN113499116B (en) | 2023-05-09 |
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| CN202110924447.8A Active CN113499116B (en) | 2021-08-12 | 2021-08-12 | Blood sampling auxiliary device |
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| CN114848065B (en) * | 2022-06-10 | 2023-04-14 | 四川大学华西医院 | Artificial blood vessel anastomosis device |
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